Music Mode for YouTube

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Music Mode for YouTube",
  "version": "0.2",
  "description": "The distraction-free way to listen to music on YouTube.",
  "browser_action": {
    "default_title": "Music Mode for YouTube",
    "default_popup": "pages/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/watch?v=*"
      ],
      "run_at": "document_start",
      "js": [
        "inject.js"
      ]
    }
  ],
  "permissions": [
    "storage",
    "tabs"
  ],
  "icons": {
    "16": "assets/icon-16.png",
    "48": "assets/icon-48.png",
    "128": "assets/icon-128.png"
  },
  "manifest_version": 2
}